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PATENTSCOPE Search

Is PATENTSCOPE free of charge?

What is stemming?

It is a process that uses the root form of words or, in other words, that removes common endings of words: for example, the term "electrical" will be stemmed to "electric", "electricity" and so on. The stemmer is related to the language of the search.

How many characters may the search string have?

There is a limit of 1024 Boolean clauses accepted, but otherwise the length of the query is virtually unlimited.